Tamotsu Kotani

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Kizugawa-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Gas concentration method
- Patent number 10,124,287
- Issue date Nov 13, 2018
- Osaka Gas Co., Ltd.
- Hiroshi Tanaka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of enriching combustible gas
- Patent number 8,974,575
- Issue date Mar 10, 2015
- Osaka Gas Co., Ltd.
- Takahisa Utaki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Combustible gas enrichment apparatus
- Patent number 8,940,081
- Issue date Jan 27, 2015
- Osaka Gas Co., Ltd.
- Takahisa Utaki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
Gas Concentration Method
- Publication number 20170144101
- Publication date May 25, 2017
- OSAKA GAS CO., LTD.
- Hiroshi Tanaka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Combustible Gas Enrichment Apparatus
- Publication number 20130136660
- Publication date May 30, 2013
- OSAKA GAS CO., LTD.
- Takahisa Utaki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method of Enriching Combustible Gas
- Publication number 20130125466
- Publication date May 23, 2013
- OSAKA GAS CO., LTD.
- Takahisa Utaki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL